2105158001 has 2 divisors, whose sum is σ = 2105158002. Its totient is φ = 2105158000.

The previous prime is 2105157983. The next prime is 2105158037. The reversal of 2105158001 is 1008515012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1964616976 + 140541025 = 44324^2 + 11855^2 .

It is a cyclic number.

It is not a de Polignac number, because 2105158001 - 2¹⁴ = 2105141617 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2105158051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052579000 + 1052579001.

It is an arithmetic number, because the mean of its divisors is an integer number (1052579001).

Almost surely, 2^2105158001 is an apocalyptic number.

It is an amenable number.

2105158001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105158001 is an equidigital number, since it uses as much as digits as its factorization.

2105158001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 2105158001 is about 45882.0008391090. Note that the first 3 decimals coincide. The cubic root of 2105158001 is about 1281.6267567462.

The spelling of 2105158001 in words is "two billion, one hundred five million, one hundred fifty-eight thousand, one".